Mercedes-Benz R350 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mercedes-Benz R350

Mercedes-Benz R350 Problems

The camshaft adjuster solenoid (which is related to the variable valve timing system) may fail or timing chain/balance shaft components may wear, resulting in illumination of the Check Engine Light and various drivability issues. Mercedes-Benz has released a service bulletin outlining specific repair instructions depending on fault codes stored.

Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.

A problem with the ball joints can cause a creaking noise. There is an updated part to remedy this problem.

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Mercedes-Benz R350 Questions

I have a 2008 R350 that I bought in April 2012 and we installed brand new tires at the time of purchase. I was just informed that my tires failed inspection and need to be replaced immediately. This doesn't seem right, since I don't do any other driving except in and around Philadelphia...

Everything seems to function properly but, I cant see how to operate the system.

2007, 129,000, regular checkups. Recently coming back from oil change i started hearing knocks in the engine when at a light or stopped. Also leaving the oil change my oil light came on. I thought they forgot to put in oil but they said no. Oil pump going or something serious? doesn't occu...

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Mercedes-Benz R350 Recalls

Mercedes–Benz is recalling certain 2008 GL-Class, M-Class, and R-Class vehicles for a possible defect in the driving pin used to control power steering oil pressure. If the pin breaks during normal vehicle turning, the steering assist will no longer operate, causing difficulty operating the steering wheel. Dealers will replace the steering gear in affected vehicles.

There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.

The accelerator pedal may be loose due to insecure mounting studs and nuts. This could cause difficulty operating the accelerator. Dealers will inspect and install the mounting nuts of the accelerator pedal if necessary. The Mercedes-Benz recall number is 2006120008. This recall began on January 16, 2007.

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Mercedes-Benz R350 Reviews

R350 is doing the same thing with deflating or lowering of the suspension. Why isn't this some kind of recall!? I see a million posts about it. I bought the car used with 16k miles on it, now 3 years later and only 50k miles on it I'm having this nuisance of an issue. My car only lifts slightly when started up. Pulled this info and writing a letter: Filing an Official Consumer Complaint...

I have had a problem with 2006 r- 350 within the 2nd month of being purchased. I am reading everyones situations with the same kind of vehicle. Glad to see I'm not the only one, but said because we are all dealing with the same issues: Blower for heating and cooling, Power steering which was fixed, but still not working, New problem is car leaning on right side, and I'm assuming its the shock...

I purchased this car about 1 month ago at a very good price. I read consumer postings regarding the relative issues and decided for the price it was worth the headache. Due to the left rear airbag leaking, I have replaced the rear air ride system with standard springs and shocks from Strutmasters. It was the best investment I made. Rides and drives well. Really everything else is regular mainte...

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